What Is My ISP?
Identify the network behind your connection.
Your ISP is identified from the registry record for your public IP address: the organisation holding the address block and the autonomous system that announces it. This is the network operator's identity, which may be a wholesale carrier rather than the brand you pay.
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Public internet targets onlyResults
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How What Is My ISP? works
What it does
Identify the network behind your connection.
What you get
Provider and network information associated with your public IP.
Live data sources
The target is sent to a network provider. Results include their source; timeouts and unavailable data are clearly marked.
What if a check cannot finish?
Confirm your input and try again. A timeout, blocked request, or unavailable provider is not proof that a domain is broken. Internet measurements and third-party services have limits.
What Is My ISP? — frequently asked questions
Why is a company I have never heard of shown?
Many retail providers resell capacity from a wholesale network, and mobile operators route through parent companies. The registry shows whoever holds the address block.
Does this change when I use a VPN?
Yes — that is the point of one. You will see the VPN provider's network instead of your own, because the site only ever sees the exit address.
What is an ASN?
An autonomous system number identifying a network that announces routes on the internet. It is a more stable identifier for a network than any single IP range.